Exercises

Hazardous operations

Western North Pacific · HYDROPAC 2750/16

issued
2016-09-11 11:48Z
status
cancelled 2016-09-24 10:00Z (archive)
self-cancels
2016-09-24 10:00Z
authority
NAVAREA XI 543/16 111133Z SEP 16.
sea
North Pacific Ocean
position
31.237, 144.447 · r 25.0 nm
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH PACIFIC.
HAZARDOUS OPERATIONS.
DNC 12.
1. HAZARDOUS OPERATIONS 2100Z TO 0900Z
   COMMENCING DAILY 15 THRU 18 SEP,
   ALTERNATE 2100Z TO 0900Z
   COMMENCING DAILY 19 THRU 23 SEP
   WITHIN 25 MILES OF 31-14-14N 144-26-48E.
2. CANCEL THIS MSG 241000Z SEP 16.

Activity windows · 9 in this warning

opens (UTC)closes (UTC)locallength
2016-09-15 21:00Z2016-09-16 09:00Z12 h
2016-09-16 21:00Z2016-09-17 09:00Z12 h
2016-09-17 21:00Z2016-09-18 09:00Z12 h
2016-09-18 21:00Z2016-09-19 09:00Z12 h
2016-09-19 21:00Z2016-09-20 09:00Z12 h
2016-09-20 21:00Z2016-09-21 09:00Z12 h
2016-09-21 21:00Z2016-09-22 09:00Z12 h
2016-09-22 21:00Z2016-09-23 09:00Z12 h
1 more

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

This area · military exercises

131 within 180 nm since 2006 · 0 in the last 12 months · 0 in force now

06
10
15
20
24

Season · when military exercises happen here

J
F
M
A
M
J
J
A
S
O
N
D

month of issue, all years in the archive

Nearby now · within 120 nm

Worldwide now

35 military exercises in force · see all

Exercises

Gunnery, firing and naval exercise areas. All current military exercises

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.